Key button arrangement for a handset



FIG. 1 is a front view of a key button arrangement for a handset showing our new design; and,

FIG. 2 is a perspective view thereof.

The uneven broken line showing of the remainder of the handset in FIGS. 1-2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a key button arrangement for a handset, as shown and described. 